linux-kernel - Re: [PATCH] AMD64_EDAC: Fix logic to determine channel for F15 M30h processors

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Date:	Fri, 7 Feb 2014 15:01:44 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>
Cc:	dougthompson@...ssion.com, linux-edac@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] AMD64_EDAC: Fix logic to determine channel for F15 M30h
 processors

On Tue, Jan 21, 2014 at 03:03:36PM -0600, Aravind Gopalakrishnan wrote:
> The current logic that returns (sys_addr >> 8) & 0x7 when
> num_dcts_intlv = 4 is incorrect. We should really be doing-
> If intlv_addr = 0x4, then interleave on bits [9:8] and if
> intlv_addr = 0x5, interleave on bits [10:9].
> 
> Refer F15 M30h BKDG D18F2x110[7:6] (DRAM Controller Select Low)
> (Link:http://support.amd.com/TechDocs/49125_15h_Models_30h-3Fh_BKDG.pdf)
> 
> Tested on F15 M30h with mce_inj module and patch did not cause
> any regressions.
> 
> Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>

Applied, thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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